Pump



L. E. MAY.

PUMP.

APPLICATION FILED MAR. 1.4, 1921.

Patented Dec. 20, 1921..

L .E.Md y

INVENTOR WITNESS:

ATTORNEY UNITED STATES PATENT OFFICE.

LAWRENCE E. MAY, 0] NASHVILLE, TENNESSEE rumr.

Specification of Letters Patent. Patented Dec, 20, 1921,

Application "filed February 14, 1921. Serial No. 445,037.

To all whom it may concern."

Be it known that I, LAWRENCE E. MAY, a citizen of the United States, residing at Nashvillain the county of Davidson and State of Tennessee, have invented new and useful improvements in Pumps, of which the following is a specification.

This invention relates to pumps, and has for its chief object the provision of a pump by means of which-heavy grease or oil can be Eo'nveniently dispensed from suitable containers, the invention being primarily intended for use in filling automobile transmission and difi'erential casings.

in s and ma re ation to t e tank and su sequently held in its adpisted position through the instru- The nature and advantages of the invention will be better understood when the following detail description is read-in connec-.

.tion with the accompanying drawing, the

tainer, which may be stationary or mounted on wheels 11 so that it can be conveniently moved from place to place. upon the top of the tank" 10. and secured thereto in any suitable manner is a casting 11 having spaced parallel bores or openings of different diameters to slidably receive the pump cylinder'12 and outlet pipe 13 of the pump structure, said cylinder-and pipe be:

ing arranged .in parallelism and adapted to enter the tank 10 through the openings in the top thereof. This pump structure is susceptible of adjustment through said openbe properly ositioned with I mentality of set screws or the like 14..

The lower end of the cylinder is threaded: into a valve casing 15 which is slightly larger in diameter than the diameter of the cylinder 12, the casing having associated therewith an inwardly opening flap valve 16. The casing 15 being larger t an the cylinder 12 allows heavy grease and oils to Supported readily enter the cylinder, and subsequently forced therefrom through the outlet pipe 13.

A valve casing 15 communicates with a lat-- eral ofi'set branch 17 through which the lower end of the outlet pipe 13 is suitably coupled,

a fiap valve 17 being interposed between the coupling 18 and the branch 17 of the valve casing. The outlet pipe 13 is smaller in diameter than the diameter of the cylinder 12, while both the cylinder 10 and the out-. let pipe 13 are of suflicient length to provide for the delivery of a predetermined quantity of grease or oil with each stroke of the piston 19. The piston reciprocates within the cylinder 12 and has associated therewith a rack bar 20, the latter sliding through a substantially L-shaped bracket21 which ,has one end secured to thenntlet pipe 13, and its opposite end secured to the casting 11. Journaled on this bracket 21 .is a.

crank handle 22 which has associated therewith a gear 23, the latter meshing with the rack bar 20 so that when the crank is turned a reciprocatory motion is transmitted and imparted to the piston 19 A flexible'discharge tube 24 is suitablycoupled to the upper end of the outlet pipe 13 this tubehaving associated with its opposite end a nozz1e25. (The invention is very simple in construc-.

tion and canbe manipulated in a very eas manner to dispense heavy grease and oi and is particularly useful in filling trans: mission and differential casings of automo-.

biles, although its general application is contemplated' by the claim. While itis believed going description the nature and advantages of the invention will be readily ap-' parent, I desire to have it understood that Iv do not limit myself to what is herein shown "and described, and that such changesmay be resorted to when desired, as fall within the scope of what is claimed.

' Whatlxclaim is:-

In combination a tank having an opening 7 in the top thereo a plate closing the opening and having spaced bores, acylinder 1 passed through one of the bores and adranged within thetan'k, avertical offset por-- tion formed on the lowerend of the cyli'n-' -der, an outlet pipe rising from the offset] portion and passing through the other bore of said plate, a valvein the lower end ,of the cylinder, a second valve in said ofi'set portions,"a piston arranged to reciprocate that froni the forewithin the cylinder, a rack bar associated ciated with said crank and meshing with the With the piston and projecting-through the rack bar to reciprocate the piston, means upper end of the cylinder, at bracket.v arfor limiting the movement of the rack bar in 10 ranged exteriorl' of the tank and supone direction, and a flexible tube coupled 5 ported by said p ate, said bracket being aswith one end of the outlet pipe.

sociated with said outlet pipe, a crank han- In testimony whereof I affix my si nature die journaled on said bracket, a gear asso- LAWRENCE E. l AY 

